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The Brother HL 2040 laser printer has a toner cartridge that supplies toner to the drum assembly so that the printer can print properly. When the LED on the front of the printer indicates you are low on toner, you will need to replace the toner cartridge to maintain good print quality. Fortunately, the toner cartridge can be replaced without any special tools.
Instructions Things You'll Need:
* Replacement toner cartridge (part number TN350 or TN360) * Paper towel or scrap paper
Grasp the front cover of the printer and pull it toward you to open the toner door. Reach into the printer and grab the combined toner cartridge/drum assembly. Lift up slightly and pull it out of the front of the printer.
Place the cartridge and drum on a paper towel, spare sheet of paper, rag or other surface that can get dirty. Loose toner particles may spill from the cartridge.
Press the blue locking lever on the cartridge/drum unit to unlock the toner cartridge from the drum. Lift the toner cartridge up and away from the drum unit. Dispose of the old toner cartridge in accordance with your local regulations. Seal it in a plastic bag to keep loose toner from spilling.
Gently shake your new toner cartridge back and forth a few times to distribute the toner evenly across the width of the cartridge. Remove the plastic protective cover from the bottom of the cartridge.
Place the new toner cartridge onto the drum unit and press it down gently until it locks into place. The blue locking lever will automatically click into place. Verify that the toner cartridge is securely connected to the drum.
Locate the corona wire cleaner tab at the front of the drum unit. Slide it back and forth several times to improve the print quality of the drum. Set the tab back in the home position when finished.
Slide the combined toner cartridge/drum unit back into the printer and close the front cover.
Try this procedure as mentioned.if any mistake in trying the procedure then retry from first step again.so read it carefully and try it.
Brother ML-2040 Toner Light Reset When replacing the toner cartridge in the Brother HL-2040 with a new cartridge (compatible or remanufactured) the user may experience a problem with the toner light staying on, even with the new toner installed. The procedure below has worked for many folks, so give it a shot. Open the front cover of the Brother HL-2040 and leave open while completing the following steps: 1.) Turn the printer off. 2.) Hold the ‘go’ button while turning the printer on. All panel lights should be on. 3.) Release the ‘go’ button once all lights are off. 4. )Press the ‘go’ button 2 times. 5.) Pause. 6.) Press the ‘go’ button 5 times. 7.) The toner light should be off. 8.) The paper light should be on. 9.) Close cover. The ready light should be the only light on. Once all steps are successfully completed your “low toner” light should be fixed.-------------From Brother Service Bulletin
1. Open the Front cover 2. Press and hold the GO button 3. Power ON the printer while continuing to hold the GO button 4. Once the 3 LED’s are lit, release the GO button 5. Press the GO button 2 times. This will cause the LED’s to light solid 6. With the LED’s lit solid, press the GO button 5 times 7. Toner Life End will then reset 8. Close the front cover.-----------Thanks. Keep updated for any more query. You can rate this
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There is a window on each end of the toner cartridge that you can cover with electrical tape and keep printing, it shines a light thru and when the toner is too low it says it's empty. The weight can be misleading.